Abstract:In this paper, micro-assisted extraction of polysaccharide from Phyllanthus urinaria was studied. The content of polysaccharide was determined by the method of phenol-sulfuric acid. Three main factors including extraction time, extraction power and ratio of solid to liquid were studied by orthogonal experiments. Results showed that extraction time was the most significant influential factor, followed by extraction power, and ratio of solid to liquid showed the minimum influence. The optimum extraction conditions were: extraction time 40 min, ratio of solid to liquid 1:20 and extraction power 400 W, under which the extraction yield of polysaccharide reached 7.9 wt%.
